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| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2019-10-24 09:58:00 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-11-05 12:23:55 +0100 |
| commit | 52162ec784fa05f3a4b1d8e84421279998be3773 (patch) | |
| tree | 0d8dcaa7389301988030a03e6f596766b61781a5 /arch/powerpc/mm | |
| parent | powerpc/mm/book3s64/radix: Remove unused code. (diff) | |
| download | linux-52162ec784fa05f3a4b1d8e84421279998be3773.tar.xz linux-52162ec784fa05f3a4b1d8e84421279998be3773.zip | |
powerpc/mm/book3s64/radix: Use freed_tables instead of need_flush_all
With commit 22a61c3c4f13 ("asm-generic/tlb: Track freeing of
page-table directories in struct mmu_gather") we now track whether we
freed page table in mmu_gather. Use that to decide whether to flush
Page Walk Cache.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191024075801.22434-2-aneesh.kumar@linux.ibm.com
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/book3s64/radix_tlb.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/arch/powerpc/mm/book3s64/radix_tlb.c b/arch/powerpc/mm/book3s64/radix_tlb.c index 24d1f30556e0..f9a4d5793f03 100644 --- a/arch/powerpc/mm/book3s64/radix_tlb.c +++ b/arch/powerpc/mm/book3s64/radix_tlb.c @@ -732,18 +732,13 @@ local: } preempt_enable(); } + void radix__flush_all_mm(struct mm_struct *mm) { __flush_all_mm(mm, false); } EXPORT_SYMBOL(radix__flush_all_mm); -void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr) -{ - tlb->need_flush_all = 1; -} -EXPORT_SYMBOL(radix__flush_tlb_pwc); - void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr, int psize) { @@ -1003,12 +998,12 @@ void radix__tlb_flush(struct mmu_gather *tlb) if (tlb->fullmm) { __flush_all_mm(mm, true); } else if ( (psize = radix_get_mmu_psize(page_size)) == -1) { - if (!tlb->need_flush_all) + if (!tlb->freed_tables) radix__flush_tlb_mm(mm); else radix__flush_all_mm(mm); } else { - if (!tlb->need_flush_all) + if (!tlb->freed_tables) radix__flush_tlb_range_psize(mm, start, end, psize); else radix__flush_tlb_pwc_range_psize(mm, start, end, psize); |